@import url(./base.less);
// 遮罩样式
.tb-mask {
    width: 100vw;
    height: 100vh;
    background-color: rgba(0,0,0,.5);
    position: fixed;
    left: 0;
    bottom: -100vh;
    z-index: 9999;
    transition: opacity @base-transition-time;
}